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Method and apparatus for encoding and decoding high frequency signal

  • US 9,478,227 B2
  • Filed: 09/01/2014
  • Issued: 10/25/2016
  • Est. Priority Date: 11/17/2006
  • Status: Active Grant
First Claim
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1. An apparatus for encoding a high band signal, the apparatus comprising:

  • a processor configured;

    to extract a coefficient from linear prediction of a high band signal, and to encode the extracted coefficient;

    to generate a signal based on a low band signal and the extracted coefficient; and

    to obtain a gain from an energy value of the high band signal and an energy value of the generated signal and to encode the gain; and

    an output unit configured to transmit the encoded coefficient and the encoded gain to a decoder,wherein the processor is configured to encode the extracted coefficient by performing an interpolation process on the extracted coefficient.

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